Mitotic anaphase differs from metaphase in possessinga)Same number of ...
D) Same number of chromosome and half number of chromatids - each chromosome separates into its two chromatids at anaphase.
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Mitotic anaphase differs from metaphase in possessinga)Same number of ...
Mitotic Anaphase vs Metaphase
Introduction:
Mitosis is a type of cell division that results in the formation of two genetically identical daughter cells. It consists of several stages, including prophase, metaphase, anaphase, and telophase. Anaphase is the stage that follows metaphase, and there are some key differences between these two stages.
Metaphase:
In metaphase, the chromosomes align along the equatorial plane of the cell. They are attached to the spindle fibers by their centromeres. At this stage, each chromosome consists of two sister chromatids, which are joined together at the centromere. Therefore, the number of chromosomes and chromatids is the same as in the original cell.
Anaphase:
Anaphase is the stage where the sister chromatids separate and move towards opposite poles of the cell. This separation is facilitated by the shortening of the spindle fibers. As the chromatids separate, they are referred to as daughter chromosomes. Each daughter chromosome consists of a single chromatid and is an exact copy of the original chromosome. Therefore, the number of chromosomes remains the same in anaphase as in metaphase.
Differences:
The main difference between metaphase and anaphase is the number of chromatids. In metaphase, each chromosome has two chromatids, while in anaphase, each daughter chromosome has only one chromatid. This is because the chromatids separate during anaphase, while they are still attached in metaphase.
Explanation of the Correct Answer:
The correct answer is option 'D', which states that mitotic anaphase differs from metaphase in possessing the same number of chromosomes and half the number of chromatids. This is accurate because during anaphase, the sister chromatids separate, resulting in each daughter chromosome having only one chromatid. However, the number of chromosomes remains the same as in metaphase.
In summary, mitotic anaphase differs from metaphase in terms of the number of chromatids. While metaphase has two chromatids per chromosome, anaphase has only one chromatid per daughter chromosome. However, the number of chromosomes remains the same in both stages.
Mitotic anaphase differs from metaphase in possessinga)Same number of ...
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